Around the rim a bowl or tall goblet, arrange 4 banana slices with the pointed ends up.,______,Top each scoop of ice cream with chocolate sauce, smashed chocolate sandwich pieces, whipped cream, and cherry.,Garnish with chocolate sprinkles.,Repeat with the remaining ingredients, and serve immediately.,In a small, heavy saucepan, bring the cream to a bare simmer over low heat.,Place the chocolate pieces in a medium bowl.,Remove the cream from the heat and whisk slowly into the chocolate.,Add the vanilla and continue whisking until the chocolate melts and the sauce thickens.,Serve the chocolate sauce warm, or let cool to room temperature.,Yield: 1 1/2 cups